Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Valve Spring

Free Length	Intake & Exhaust (Approximately)	1.7965 Inch (in)
Spring Force	Intake & Exhaust (Valve Closed)	56.0 - 64.0 at 1.4961 Pound Force At Inch (lbf @ in)
	Intake (Valve Open)	147.9 - 162.1 at 11.1417 Pound Force At Inch (lbf @ in)
	Exhaust (Valve Open)	138.0 - 150.8 at 1.1811 Pound Force At Inch (lbf @ in)
Number of Coils	Intake & Exhaust	7.35
Wire Diameter	Intake & Exhaust	0.1520 Inch (in)
Installed Height	Spring seat to bottom of retainer	1.4961 Inch (in)